<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
	<p>
		stirng,Array,set,map
	</p>
	<script>
		var arr = ["小红","小蓝","小绿","小黑"];
		// Symobl符号 iterator迭代器
		var iter = arr[Symbol.iterator]();
		var obj1 = iter.next();
		console.log(obj1);
	</script>
	</body>
</html>
